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United States Patent | 5,070,289 |
Pona, Jr. | December 3, 1991 |
A miniature two degree of freedom fluid bearing angular rate sensor used primarily for tactical applications includes a spherical hydrodynamic fluid bearing rotor, a permanent magnet motor/torquer, and an optical pick-off, all of which are arranged to provide two axes of rate information in a small package. The individual components can be pre-assembled as sub-assemblies, and individually stocked and tested for final assembly.
Inventors: | Pona, Jr.; Joseph (Bayonne, NJ) |
Assignee: | Allied-Signal Inc. (Morris Township, Morris County, NJ) |
Appl. No.: | 487097 |
Filed: | March 2, 1990 |
Current U.S. Class: | 318/640; 74/5.6A; 318/138; 318/689 |
Intern'l Class: | G05B 017/00 |
Field of Search: | 318/138,254,439,463,464,648,568-656,721,649 310/90 74/5 R,5.37,5.4,5.42,5.46,5.47,5.5,5.6 R,5.6 A,5.6 D,5.6 E,5.7,572 |
3501967 | Mar., 1970 | Cotiis | 74/5. |
3596523 | Aug., 1971 | Clark | 74/5. |
3697143 | Oct., 1972 | Klinchurch | 74/5. |
3722295 | Mar., 1973 | Passarelli, Jr. | 74/5. |
4043205 | Aug., 1977 | Merlo | 74/5. |
4222270 | Sep., 1980 | Allen | 318/648. |
4278927 | Jul., 1981 | Grohe | 318/649. |
4320669 | Mar., 1982 | Grohe | 74/5. |
4329884 | May., 1982 | Ferriss | 74/5. |
4452092 | Jun., 1984 | Dankwort | 74/5. |
4610172 | Sep., 1986 | Mickle et al. | 74/5. |
4651576 | Mar., 1987 | Luke | 318/634. |
4818922 | Apr., 1989 | Sears et al. | 318/138. |
4862050 | Aug., 1989 | Parfomak et al. | 318/138. |
4947067 | Aug., 1990 | Habermann et al. | 318/629. |